Ann Arbor Triathlon

The Ann Arbor Tri, Du, & Aquabike is a renowned multi-sport event taking place in Gregory, Michigan, on July 12, 2025. Established in 1986, this triathlon features a scenic course set in the Pinckney Recreation Area at Halfmoon Lake, one of Michigan's largest state parks. Participants can choose from various events, including Olympic and Sprint triathlons, duathlons, aquabikes, relays, and an open water swim.

The race offers a unique opportunity to swim in open waters, bike through picturesque rural roads, and run along the Potawatomi Trail, making it a favorite among athletes of all levels. Visit the organization's website for the most recent information.